The African Americans: Many Rivers to Cross This new episode chronicles the formative years of the civil rights movement, telling the stories of Rosa Parks, the Rev. Martin Luther King Jr. and the nonviolent protest movement that was all too often countered with violence. 8 p.m. KOCE

Abby's Ultimate Dance Competition The finalists have one last chance to shine in the season finale. 9 p.m. Lifetime

The Mindy Project Danny (Chris Messina) encourages a mommy blogger to write about him and his colleagues, but nobody is happy with the results, ?so a public relations expert (Jenna Elfman) is brought in to fix the situation in this new episode. 9:30 p.m. Fox

Frontline This report, which first aired 20 years ago, attempts to answer a question that's been asked since 1963: "Who Was Lee Harvey Oswald?" 10 p.m. KOCE

SPECIALS

The iHeartradio Album Release Party With Lady Gaga With Jeff Koons and Ryan Seacrest. 8 p.m. KTLA

Lincoln at Gettysburg This new episode reveals how the telegraph connected President Abraham Lincoln to the country and helped shape the Gettysburg Address. 9 p.m. KOCE

David Blaine: Real or Magic David Blaine practices good old-fashioned street magic in this new special, in which he performs for ordinary folks as well as celebrities, visiting the homes of celebrities. Katy Perry, Bryan Cranston and Jamie Foxx also appear. 9:30 p.m. ABC